JonMidhir

/* CSS Hack to push/pull a fixed width element left/right without floating. 
   Probably common knowledge but it's new to me. */

/* Margin: auto is often used to center one fixed-width element within another, like so */

#element1 {
  width: 980px;
}

#child1 {

JonMidhir

# Does validates :uniqueness get called even if a field has not changed?
# Isn't this a performance issue?

validates :name, :schedule_id, :uniqueness => true

# My experience that it does. So isn't it almost always necessary to make sure a change has taken
# place before running the validation? As every field being checked for uniqueness requires a 
# database hit.

# This would be better:

JonMidhir

@mixin transparency($opacity, $microsoft_friendly_stupidly_unneccessary_percentage_value) {
  zoom: 1;
  filter: alpha(opacity=$microsoft_friendly_stupidly_unneccessary_percentage_value);
  opacity: $opacity;
}

JonMidhir

# Say you want to iterate over a variable that might be an array or null/undefined,
# you can do this:

for order in orders or []
  # Do something with orders
  
# This simply iterates over the empty array if book is null or undefined. Handy if
# you have an object like this:

customers = {

JonMidhir

$ = jQuery

// Takes an array of strings
$.preloadImages = function(images) {
  $(images).each(function() {
    $('<img />')[0].src = this;
  });
}

// Use it anytime after the document loads

JonMidhir

class ShiftDock.Views.RotasIndex extends Backbone.View
# ...

  initialize: ->
    @collection.on 'fetched', @render, this
    
  render: ->
    # ...

# ...

JonMidhir

class ShiftDock.Routers.Rotas extends Backbone.Router
  routes:
    '': 'index'

  initialize: ->
    @collection      = new ShiftDock.Collections.Rotas()
    @collection.view = new ShiftDock.Views.RotasIndex(collection: @collection, el: '#container')
 
  index: (year, week) ->
    @collection.fetch

JonMidhir

# Assume response JSON for `book` looks like this:
#  {
#    id: 1,
#    pages: [{
#      id: 1,
#      chapter: 1,
#      text: 'It was the best of times, '
#    }, {
#      id: 2,
#      chapter: 1,

JonMidhir

$.fn.dependentSelect = ->
  $(@).addClass('dependent')
  
  @each ->
    $(@).data('pre', $(@).val())
    
    @disableOthers = ->
      $('select.dependent')
        .not($(@))
        .find("option[value=#{$(@).val()}]")

JonMidhir

def as_json
  super(methods: [:balance, :available])
end